netfilter: add ip_vs kernel modules to enable load balancer

IPVS (IP Virtual Server) implements transport-layer load balancing inside
the Linux kernel, so called Layer-4 switching. IPVS running on a host acts
as a load balancer at the front of a cluster of real servers, it can direct
requests for TCP/UDP based services to the real servers, and makes services
of the real servers to appear as a virtual service on a single IP address.

This change adds kmod-nf-ipvs and kmod-nf-conntrack-ftp kernel modules
options to LEDE kernel netfilter

Signed-off-by: Mauro Mozzarelli <mauro@ezplanet.org>
[Jo-Philipp Wich: replace kmod-nf-conntrack-ftp with kmod-nf-nathelper
                  dependency, rewrap commit message, adjust subject]
Signed-off-by: Jo-Philipp Wich <jo@mein.io>

diff --git a/package/kernel/linux/modules/netfilter.mk b/package/kernel/linux/modules/netfilter.mk
index 53188eab5acd27ee484643fcdd7dcbf6188a9234..cb71e8933dc4aceb44a28be330b022b60f642431 100644 (file)
--- a/package/kernel/linux/modules/netfilter.mk
+++ b/package/kernel/linux/modules/netfilter.mk
@@ -348,6 +348,84 @@ define KernelPackage/ipt-ipset
 endef
 $(eval $(call KernelPackage,ipt-ipset))
 
+IPVS_MODULES:= \
+       ipvs/ip_vs \
+       ipvs/ip_vs_lc \
+       ipvs/ip_vs_wlc \
+       ipvs/ip_vs_rr \
+       ipvs/ip_vs_wrr \
+       ipvs/ip_vs_lblc \
+       ipvs/ip_vs_lblcr \
+       ipvs/ip_vs_dh \
+       ipvs/ip_vs_sh \
+       ipvs/ip_vs_fo \
+       ipvs/ip_vs_ovf \
+       ipvs/ip_vs_nq \
+       ipvs/ip_vs_sed \
+       xt_ipvs
+
+define KernelPackage/nf-ipvs
+  SUBMENU:=Netfilter Extensions
+  TITLE:=IP Virtual Server modules
+  DEPENDS:=@IPV6 +kmod-lib-crc32c +kmod-ipt-conntrack +kmod-nf-conntrack
+  KCONFIG:= \
+       CONFIG_IP_VS \
+       CONFIG_IP_VS_IPV6=y \
+       CONFIG_IP_VS_DEBUG=n \
+       CONFIG_IP_VS_PROTO_TCP=y \
+       CONFIG_IP_VS_PROTO_UDP=y \
+       CONFIG_IP_VS_PROTO_AH_ESP=y \
+       CONFIG_IP_VS_PROTO_ESP=y \
+       CONFIG_IP_VS_PROTO_AH=y \
+       CONFIG_IP_VS_PROTO_SCTP=y \
+       CONFIG_IP_VS_TAB_BITS=12 \
+       CONFIG_IP_VS_RR \
+       CONFIG_IP_VS_WRR \
+       CONFIG_IP_VS_LC \
+       CONFIG_IP_VS_WLC \
+       CONFIG_IP_VS_FO \
+       CONFIG_IP_VS_OVF \
+       CONFIG_IP_VS_LBLC \
+       CONFIG_IP_VS_LBLCR \
+       CONFIG_IP_VS_DH \
+       CONFIG_IP_VS_SH \
+       CONFIG_IP_VS_SED \
+       CONFIG_IP_VS_NQ \
+       CONFIG_IP_VS_SH_TAB_BITS=8 \
+       CONFIG_IP_VS_NFCT=y \
+       CONFIG_NETFILTER_XT_MATCH_IPVS
+
+  FILES:=$(foreach mod,$(IPVS_MODULES),$(LINUX_DIR)/net/netfilter/$(mod).ko)
+  $(call AddDepends/ipt,+kmod-ipt-conntrack,+kmod-nf-conntrack)
+endef
+$(eval $(call KernelPackage,nf-ipvs))
+
+define KernelPackage/nf-ipvs/description
+ IPVS (IP Virtual Server) implements transport-layer load balancing inside the Linux kernel
+ so called Layer-4 switching.
+endef
+
+define KernelPackage/nf-ipvs-ftp
+  SUBMENU:=$(NF_MENU)
+  TITLE:=Virtual Server FTP protocol support
+  KCONFIG:=CONFIG_IP_VS_FTP
+  DEPENDS:=kmod-nf-ipvs +kmod-nf-nat +kmod-nf-nathelper
+  FILES:=$(LINUX_DIR)/net/netfilter/ipvs/ip_vs_ftp.ko
+endef
+
+$(eval $(call KernelPackage,nf-ipvs-ftp))
+
+
+define KernelPackage/nf-ipvs-sip
+  SUBMENU:=$(NF_MENU)
+  TITLE:=Virtual Server SIP protocol support
+  KCONFIG:=CONFIG_IP_VS_PE_SIP
+  DEPENDS:=kmod-nf-ipvs +kmod-nf-nathelper-extra
+  FILES:=$(LINUX_DIR)/net/netfilter/ipvs/ip_vs_pe_sip.ko
+endef
+
+$(eval $(call KernelPackage,nf-ipvs-sip))
+
 
 IPVS_MODULES:= \
        ipvs/ip_vs \